Unable to start with: `npm run dev`

[ryanpcmcquen]

The first error was easy to fix:

λ npm run dev

> microstudio@1.0.0 dev
> npm run compile && concurrently "npm:compile-and-watch" "npm:start"


> microstudio@1.0.0 compile
> coffee -c --no-header -b ../.

/Users/ryanmcquen/code/microstudio/server/webapp.coffee:47:101: error: unexpected ,
    @reserved = ["explore","documentation","projects","about","login","user","tutorials\\/examples",,"tutorials\\/community"]
                                                                                                    ^

But I'm not familiar enough with CoffeeScript for this one:

λ npm run dev

> microstudio@1.0.0 dev
> npm run compile && concurrently "npm:compile-and-watch" "npm:start"


> microstudio@1.0.0 compile
> coffee -c --no-header -b ../.

/Users/ryanmcquen/code/microstudio/static/js/languages/microscript/v2/processor.coffee:50:17: error: unexpected identifier
        a = [...arguments]
                ^^^^^^^^^

[seheinz]

This appears to be an issue with the spread operator (...) not being supported by the coffeescript version in package.json ( "coffeescript": "^1.12.7"). Unfortunately, bumping up the version to latest causes havoc in other places. Maybe Gilles was transpiling this file with a different coffeescript version.

For now, you can fix this with the following patch to avoid the spread operator :

diff --git a/static/js/languages/microscript/v2/processor.coffee b/static/js/languages/microscript/v2/processor.coffee
index 0bb7627..71f6cd1 100644
--- a/static/js/languages/microscript/v2/processor.coffee
+++ b/static/js/languages/microscript/v2/processor.coffee
@@ -47,7 +47,7 @@ class @Processor
       proc.stack[++proc.stack_index] = arguments.length
 
       if routine.uses_arguments
-        a = [...arguments]
+        a = Array.prototype.slice.call(arguments)
         for i in [0..a.length-1] by 1
           if not a[i]?
             a[i] = 0
@@ -73,7 +73,7 @@ class @Processor
       proc.stack[++proc.stack_index] = arguments.length
 
       if routine.uses_arguments
-        a = [...arguments]
+        a = Array.prototype.slice.call(arguments)
         for i in [0..a.length-1] by 1
           if not a[i]?
             a[i] = 0